Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2023

Monday 20 November

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 386 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 20 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

48 of 48 minutes covered

Midday of Tuesday 21 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

0 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 05:22 on Mon 20 Nov to 03:17 on Tue 21 Nov.

    2023-11-19T23:52:13Z → 2023-11-20T21:46:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 20th, 11:49–12:37 on the 21st.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 23164 s

  5. 05

    Ruling

    Gopāṣṭamī, Ujjain, 2023: Monday 20 November.

    confidence: determinate

Say it like this

In Ujjain, Gopāṣṭamī 2023 falls on Monday 20 November. Aṣṭamī runs from 05:22 on Mon 20 Nov to 03:17 on Tue 21 Nov and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2023/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 20 Nov
compat-drikpanchangComparison profileMon 20 Nov
No institution has a recorded ruling for Ujjain.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/gopashtami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 8 Gopastami, Gosthastami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles15:52 → 13:4711:140 min11:1448 min20 Nov
Chicago17:52 → 15:4711:120 min11:1248 min20 Nov
Jersey City18:52 → 16:4711:170 min11:1848 min20 Nov
Port of Spain19:52 → 17:4711:270 min11:2848 min20 Nov
London23:52 → 21:4711:220 min11:2248 min20 Nov
Durban01:52 → 23:4711:170 min11:1848 min20 Nov
Dubai03:52 → 01:4711:400 min11:4048 min20 Nov
Delhi05:22 → 03:1711:420 min11:4248 min20 Nov
Kolkata05:22 → 03:1710:580 min10:5848 min20 Nov
Singapore07:52 → 05:4712:260 min12:2648 min20 Nov
Sydney10:52 → 08:4712:170 min12:1748 min20 Nov
Suva11:52 → 09:4711:280 min11:2824 min20 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gopashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s